Shuttle-feeler mechanism for looms.



H. A. DAVIS.

SHUTTLE PEBLER MECHANISM FOR LOOMS.

APPLIOATION FILED MAR 10, 1013.

1,084,878, Patented Jan. 20, 1914.

2 SHEETS-*SHEBT 1.

, law I!!! Witnesses? Inventor. W W Harry A.Davis, W4. a041 g H. A. DAVIS.

SHUTTLE FBELER MECHANISM FOR LOOMS.

APPLICATION FILED MAR.10,1913.

1,084,878, Patented Jan. 20, 1914.

2 SHEETS-SHEET 2.

Witnesses; Inventor.

HarrqADavis, y l/ M by Mgmd ltq's COLUMBIA PLANOGRAI'II CO.,WASIHNOTON. u. c.

UNITED STATES PATEN T OFFICE.

HARRY A. DAVIS, OF HOPEIDALE, MASSACHUSETTS, ASSIGNOR TO DRAPER COMPANY, OF HOPEIDALE, MASSACHUSETTS, A CORPORATION OF MAINE.

SHUTTLE-FEELER MECHANISM FOR LOOMS.

To all whom it may concern:

Be it known that I, HARRY A. DAVIS, a citizen of the United States, and resident of I-Iopedale, county of lVorcester, State of Massachusetts, have invented an Improvement in Shuttle-Feeler Mechanism for Looms, of which the following description, in connection with the accompanying drawing, is a specification, like characters on the drawing representing like parts.

This invention relates to looms of the type wherein the running filling is replenished prior to complete exhaustion, the old or spent filling being parted between the cloth and the shuttle by parting means, usually mounted on a swinging support or arm, generally arranged to perform the function of a shuttle feeler.

The engagement of the shuttle feeler with an improperly boxed shuttle restrains the operation of the replenishing mechanism and ordinarily the parting of the spent filling will not occur. But it not infrequently happens that the conditions are such that while the operation of the replenishing mechanism is restrained through the action of the shuttle feeler, yet nevertheless such a movement of the shuttle feeler takes place as to result in the actuation of the thread parting means. When this happens, severance occurs without filling replenishment, and consequently two empty picks will be made in the cloth with the consequent objectionable thin place.

The object of this invention is to secure the operation of the thread parting means only upon the actual transference of the filling carrier to the lay, so that there can be no parting of an unabandoned filling by the thread parting means. To this end the invention provides for the actuation of the thread parting means by or through the transfer of the fresh filling carrier. Hence if the fresh filling carrier be not transferred there can be no actuation of the thread parting means, and the objections due to a premature parting of the thread are obviated.

The invention may be embodied in various specific forms of construction, depending upon the character of filling replenishing loom to which it may be applied.

To illustrate the invention I have shown a preferred embodiment thereof in connection with a loom such as the well-known Northrop loom, in which the filling car- Specification of Letters Patent.

Application filed March 10, 1913.

Patented Jan. 20, 1914. Serial No. 753,282.

riers are bobbins, the fresh bobbins being supported in a rotary hopper or magazine and transferred therefrom upon call by a transferring device to the shuttle on the lay. The bobbin support usually employed in this particular type of loom, and which is swung aside as the fresh bobbin passes out from the magazine into the shuttle on the lay, is employed by me in this illustration of my invention for actuating the thread parting means. This bobbin support can only be actuated when a filling carrier is transferred, and consequently the objects of this invention are satisfactorily secured in this type of loom by employing the bobbin support as the actuator for the thread partlng means.

The nature of the invention will more fully appear from the accompanying description and drawings and will be particularly pointed out in the claims.

The drawings illustrate a preferred form of the invention as embodied in the Northrop type of weft replenishing loom.

In the drawings Figure 1 is a transverse section of a portion of the automatic filling replenishing loom, having one embodiment of my present invention applied thereto. Fig. 2 is a detail in cross section of a portion of the means for opening the thread parter, together with its supporting bracket; Fig. 3 is a view of the parts shown in Fig. 2 looking toward the right with the portion to the left of the section Y-Y removed; Fig. 4 is a detail in front elevation of the upper end of the shuttle feeler, thread clamping and parting means, and the means for opening the thread clamp and parter, and the bobbin support. Fig. 5 is a plan view of a portion of the loom suflicient to show the relation of the parts here-involved.

The lay A transferrer f to remove the filling carriers or in this case the bobbins b from the filling magazines, feeder or hopper F to the shuttle S when in the box B at the replenishing side of the loom; the controlling roek shaft d and its adjuncts; the horizontal stud 2 on which rocks and slides the hub 4 of the shank 10 of the shuttle feeler 9; the fixed and movable blades 16 17 carried by the feeler, and the plate 19 constituting the fixed member of the thread clamp; the pin 3 projecting from the shank 10 and operatively connected with the rock shaft d by the arm J and jaw d govioo erned by the in which the shank 10 of the shuttle feeler moves, and which causes the lateral or sliding movement of the shuttle feeler on the stud 2; the notched dog m pivoted to the depending arm of the transferrer f; the cam slotted arm Y bolted at 8 to the shank 10 of the shuttle feeler, and operating the dog m? to swing it into the path of the hunter C the temple T and the temple thread cutter 25 thereon; are parts, the construction and operation of which will readily be understood by one familiar with the art, such for example as is disclosed in the patents "to Draper 683,423, September 24;, 1901, and Rhoades 922,511 May 25, 1909 and 1,009,178, November 21, 1911.

The filling hopper is provided with the usual guide stop It against which the filling carrier or bobbin 6* is brought into position for transfer. As is usual, the filling carrier or bobbin to be transferred is yieldingly supported and guided on the side opposite to the stop it by means of a bobbin support consisting of a fiat finger 20 on a swinging plate 21. provided with a hub 22, the said finger being located adjacent the inner face of the disk F of the hopper and opposite the stop I h. A second finger 23 on the plate 21 is upheld and straddles the stand F of the hopper. A pin 24 passes through the finger 23, the stand F and into the finger or support 20, thus pivotally mounting the bobbin support 20 and its connected parts on the stand F. A spring 25 is held between the notched lug 26 on the back of the stand and the head 27 of a slide rod 28 connected with the finger 23, the rod being guided in the notched lug. The stop h thus forms one side of a throat through which the filling carrier or bobbin passes to the shuttle, the bobbin support or finger 20 forming the other side. When the transferrer descends to remove the filling carrier from the hopper to the shuttle, the bobbin support yields and supports and guidesthe bobbin as it passes into the shuttle. The construction and operation of this bobbin support will be familiar to one skilled in the art and is generally as shown in the patent to Stimpson 664,790 December 25, 1900.

The construction and operation of the specific devices which I have herein illustrated as a preferred form for embodying the present invention in a loom of the type illustrated will now be described.

The finger 23 which is integrally or rigidly connected with the bobbin support 20 to pivot on the pin 24, as has been explained, is herein enlarged somewhat laterally to present a projection 30. This projection 30 is bored out to receive a striker arm 31 herein shown as of general L-shape. This striker arm is locked in place by set screws 32 in the 31 to be adjusted both longitudinally and rotarily in the projection 30, and thus to give any desired position to the free end of the striker arm. The movable member 17 of the thread clamp and parter projects upwardly above the shuttle feeler and is formed with a cam surface 35.

in the operation of the mechanism, when a replenishment of filling is called for, the shaft (Z is rocked in the usual manner, raising the arm (Z and rocking the shuttle feeler toward the lay. If the shuttle is properly boxed the feeler will pass in front of the shuttle in the usual manner, the dog 011* will be brought in the path of the bunter C and the transferrer f will be operated in the usual manner to knock or transfer the bobbin 6* from the hopper into the shuttle therebeneath. Upon the forward movement of the shuttle feeler the filling extending from the bobbin or filling carrier to be abandoned will have entered between the members of the thread parter which are then open or separated. The striker arm 31 is so adjusted and positioned with respect to the cam surface 35 and movable member 17 of the thread parter that upon the transfer of the bobbin 5* the striker arm 31 will be moved downwardly simultaneously with the bobbin support 20, will come into contact with the cam surface 35 and will operate the movable member 17 to clamp and part/the filling of the abandoned filling carrier or bobbin.

It will thus be seen that unless the transfer of the bobbin takes place there will be no operation of the thread clamping and parting instrumentality and consequently no severance of the filling. Only when the fresh filling carrier is actually transferred. will there be a movement of the bobbin support 20, and consequently a movement of the striker arm 31 and an operation of the thread clamping and parting instrumentality. Therefore, if the shuttle be improperly boxed so that it is struck by the shuttle feeler, or if the conditions are such that the shuttle feeler, no matter to what extent it may move, does not effect a filling transfer, or if for any reason the filling transfer does not actually take place, then there can be no severance of the filling by the thread clamping and parting instrumentality.

It is necessary to provide means for opening the thread clamp and parter after its actuation, in the form of device illustrated as an embodiment of the invention, and for that purpose the construction now to be described may be employed and is the preferred form of means for that purpose when the invention is employed in the type of loom illustrated. A bracket 40 bolted at a1 to the loom frame, has an arm 42 projecting downspring 3*; the slotted cam ear 17 projection 30, thus enabling the striker arm wardly and bracing it against the frame, and an arm 43 upstanding to a point above the path of the shuttle feeler. This arm, as shown more clearly in Figs. 2 and 3, is provided with a lateral projecting stud 44 on which is pivotally mounted the hub 45 of a catch 46. A coil spring 47 surrounds the pin 44 in the interior of the hub 45 and is made fast at one end to the arm 43 and at the opposite end to the hub 45, and acts normally to hold the catch 46 in a substantially vertical position, a stop 48 projecting from the arm 43 and contacting with a lug 49 projecting downwardly from the hub 45 for that purpose. The lower face of the catch 46 is inclined or cam-shaped, as shown at 50, sloping upwardly toward the front of the loom.

An opening pin 51 projects laterally from the end of the movable member 17 of the thread parter into the path of the cam face 50 of the catch 46. It will be seen, therefore, that when the shuttle feeler starts on its swinging movement at the call for filling replenishment, the pin 51 will ride beneath the cam face 50, thus forcing open the thread parter by rocking the movable member 17 on its pivot, the catch 46 being held stationary against the stop 48. On its return movement, if the thread parter has been actuated to clamp and part the thread, thus raising the position of the pin 51, the pin 51 will swing the catch 46 about its pivot against the spring 47, thus allowing the thread clamp and parter to resume the position shown in Fig. l and carry the thread into the field of the temple cutter t in the usual manner.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent is 1. In an automatic filling replenishing loom comprisii'lg a lay, a replenishing magazine for the fresh filling arricrs and a transferrer for transferring a fresh filling carrier from the magazine to the lay, the combination of a thread clamping and parting instrumentality movable toward and from the lay, a catch movably mounted in the path of said instrumentality acting on the rearward movement thereof to open said instrumentality and to move to allow the passage therepast of said instrumentality upon its forward movement, and means actuated by or through the transfer of the fresh filling carrier from the magazine to the lay to actuate the said instrumentality to clamp and part the thread of the filling carrier to be abandoned.

2. In an automatic filling replenishing loom comprising a lay. a hopper for the fresh filling carriers, a thread clamping and part-ing instrumentality movable toward and from the lay, the said instrumentality comprising cooperating movable and fixed elements to clamp and part the thread, a catch pivotally mounted above the path of said instrumentality, a stop to restrain rearward movement of said catch, a spring to hold said catch yieldingly against said stop, cooperating stop and cam elements located on said movable member and catch, whereby upon the rearward movement of said instrumcntality the catch will act to move the movable member to open position and upon the forward movement of said instrumentulity will yield to allow the passage thereof therepast, a filling carrier support movable to release a fresh filling carrier from the hopper, and means carried by and movable with said support to actuate said movable element to clamp and part the thread of the filling carrier to be abandoned.

3. In an automatic filling replenishing loom comprising a hopper for the fresh filling carriers, a filling carrier support removable to release a fresh filling carrier from the hopper, a swinging shuttle feeler, a thread clamping and parting instrumentality comprising fixcd and movable members mounted on and carried by the shuttle feeler, an arm carried by and movable with said filling carrier support and having its end projecting over said movable element when in rearward position, whereby when the filling carrier support is moved to release a fresh filling carrier from the hopper, the said arm strikes the movable element to *ause the thread of the filling carrier to be abandoned to be clamped and parted.

4. In an automatic filling replenishing loom comprising a lay, a replenishing magazine for the fresh filling carriers, and a transferrer for transferring a fresh filling carrier from the magazine to the lay, the combination of a thread clamping and parting instrumentality, and means actuated by or through the transfer of the fresh filling carrier from the magazine to the lay to actuate the said instrumentality to clamp and part the thread of the filling carrier to be abandoned.

5. In an automatic filling replenishing loom, comprising a replenishing magazine for the fresh filling carriers, and means for discharging fresh filling carriers from the magazine, the combination of a thread clamping and parting i1istrumentality, and means actuated by or through the discharge of the fresh filling carrier from the magazine to actuate the said instrumcnt-ality to clamp and part the thread of the filling carrier to be abandoned.

6. In an automatic filling replenishing loom, comprising a hopper for the fresh filling carriers, a filling carrier support movable to release a fresh filling carrier from the hopper, a thread clamping and parting instrumentality, and means actuated by said support When moved into releasing position to actuate said instrumentality to clamp and part the thread of the filling carrier to be abandoned.

7. In an automatic filling replenishing loom, comprising a hopper for the fresh filling carriers, a filling carrier support movable to release a fresh filling.carrier from the hopper, a thread clamping and parting instrumentalit-y, and means carried by and movable With said support to actuate said instrumentality to clamp and part the thread of the filling carrier to be abandoned.

8. In an automatic filling replenishing loom, comprising a hopper for the fresh filling carriers, a filling carrier support movable to release a fresh filling carrier from the hopper, a thread clamping andparting instrumentality, and an arm carried by and movable With said support and having its end projecting over and actuating the thread clamping and parting instrumentality to clamp and part the thread of the filling carrier to be abandoned upon the releasing movement of the said support.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing Witnesses.

HARRY A. DAVIS.

lVitnesses L. S. BURBANK, DANA Oseoon.

(lupin of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington. I). G. 

